Specifications

Expansion card
PCIe I/O slots can support other PCIe cards with less bus bandwidth than what is physically defined for
the slot.
Expansion card slot description
NOTE: The x1, x4, and x16 designators describe the mechanical length of the slot. The number in
parentheses lists the number of electrical PCIe lanes routed to the expansion slot. For example, x16(4)
means that the expansion slot is mechanically a x16 length connector, with four PCIe lanes connected.
Use the following table to determine PCIe card compatibility.
Table 5-6 computer PCIe compatibility matrix
Slot Mechanical compatibility Electrical lanes available
1 x1 connector 1
2 x16 connector 16
3 x4 connector 1
4 x16 connector 4
Removing an expansion card
To remove an expansion card:
1. Disconnect power from the computer (see
Predisassembly procedures on page 70).
2. Remove the side access panel (see
Removing the side access panel on page 73).
3. Remove the expansion card retainer (if installed): grasp the top of the clamp (1), squeeze the
release handles until the bottom of the clamp releases from the clamp rail (2) (it should click when
it releases), and swing the clamp out from the back panel (3).
Figure 5-30 Removing expansion card retainer
4. Remove all cables connected to the expansion card.
100 Chapter 5 Replacing components ENWW